I\'m very good at numbers, but I don't literally enjoy looking at them and basically prefer to "wing it" or usually kind of operate with "napkin analysis\" in a particularly big way.

A coffee/tea tray in the kitchen nook with cups and pretty napkins will warm the space, as well as setting a dining table.

Of course, that is just back of the napkin advice as a general rule.  

If its a back of the napkin estimate then I’d start with the highest significant digits and round up to get an order of magnitude.

you can really just use napkin math on this stuff.. 

Or a good ole school “Cash T” CPA trick IRS Agents use to sniff out people who try to pass information that doesn’t meet the scrutiny of a basic truth income formula you can do in 2 minutes on a napkin.

So for this segment it ranges from readily having detailed job breakdowns too a scribbling on a napkin. 

You should save money to replace the entire sanitary lead, but solve the immediate problem first.

These generally don't require as much infrastructure from the county (septic instead of sanitary sewer, usually no stormwater systems required), and I sell them to consumers wishing to build their own homes on enough acreage to have vegetable gardens, chicken coops, etc.

I love the idea of quickly weeding out deals that aren't a good fit to avoid wasting hours crunching numbers.Running a quick back-of-the-napkin test on each deal before diving into detailed underwriting is genius.